Bag-sewing mechanism



J. E. SCHMANDT. BAG SEWING MECHANISM. APPLICKTION FILED NOV. 23 l9l8. 1,351,] 34, Patented Aug. 31, 1920.

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J. E. SCHMANDT. BAG SEWING MECHANISM, 1,351,134.

APPLICATION FILED NOV. 23, I918.

Patented Aug. 31, 1920 I0 SHEETSSHEET 2.

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APPLICATION FliED NOV. 23 l9l8- I 1,351, 1 34}, Patented Aug. 31; 1920.

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J. E. SCHMANDT.

BAG SEWING MECHANISM. APPLICATION FILED NOV. 23, ms.

1,351, 134. PatentedAug- 31,1920.

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JET-Sci; manoli J. E. SCHMANDT. BAG SEWlNG MECHANISM.

APPLICATION FILED NOV. 23. 1918. v 1, 35 1 l 34. Patented Aug- 31, 1920.

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J. E. scum/mm. BAG SEWING MECHANISM. APPLICATION FILED NOV. 23. I9I8.

Patented Aug- 31, 1920.

I0 SHEETS-SHEET 6.

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J. E. SCHMANDT. BAG SEWING MECHANISM.

APPLICATION FILED NOV. 23,1918. 1,351,134.

10 SHEETS-SHEET I.

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Patented Aug. 31, 1920.

J. E. SCHMANDT. BAG-SEWING MECHANISM.

APPLICATION FILED NOV. 23, 1918. 1,351,134.

Patented Aug. 31, 1920.

I0 SHEETS-SHEET B.

J. E. SCHMAND T. BAG SEWING MECHANISM.

APPLICATION FILED NOV. 23, l9I-8. 1,351,1 34.

1-0 SHEETS-SHEET 9.

Patented Aug- 31, 1920.

J. E. SCHMANDT. BAG SEWING MECHANISM- APPLICATION FILED NOV. 2a. 1918.

Patented Aug. 31, 1920'.

llzschmanolf JACOB EMIL SCHMANDT, OF HARRINGTON, -WA.SHING'ION.

BAG-SEWING MECHANISM.

Specification of Letters Patent.

Patented An 31, 1920.

Application filed November 23, 1918. Serial No. 263,858.

T 0 all whom it may 00 mrern Be it known that l, JACOB EMIL Sornmrinr, a citizen of the United States, residing at Harrington, in the county of Lincoln and State of Washington, have in vented certain new and useful Improvements in Bag-Sewing Mechanism, of which the following is a specification.

This invention relates to an improved bag sewing mechanism, and has for its primary object to provide automatic means for sewing together the opposite sides of bags such as are commonly used as containers for grain, which is simple and compact in its arrangement and can be readily applied to a combined harvesting and threshing machine, whereby the grain sacked as it is harvested in the field.

It is also a more particular object of my invention to provide in combination with a sack support, bodily shiftable sewing mechanism, said mechanism forming a chain stitch through the walls of the bag or sack at its mouth as it is moved in one direction relative to the sack.

It is another important object of my invention to provide simple and effective means for automatically clamping and hold ing the twine in the return movement of the sewing mechanism and severing the twine from its connection with the bag or sack.

it is likewise an object of my invention to provide improved means for clamping together the opposed walls of the bag or sack at the mouth thereof and to support the bag in proper position relative'to the movable sewin mechanism.

A further detail object of the invention is to provide means which will operate to prevent the possibility of breakage of the sewing needle in the return movement of the mechanism to its normal position.

With the above and other objects in view, the invention consists in the improved construction, combination and relative arrangement of the several parts as will be hereinafter more fully described, subsequently claimed and illustrated in the accompanying drawings in which similar reference characters designate corresponding parts throughout the several views, and wherein Figure 1 is a front elevation illustrating the preferred embodiment of my improved sewing mechanism;

Fig. 2 is an end view thereof;

Fig. 3 is a top plan view, the clamping means for the bag being shown in extended position in full lines and in its effective clamping position in dotted lines;

Fig. 41 is an enlarged side elevation of the bag clamp;

Fig. 5 is a top plan view of the clamp;

Fig. 6 is a section taken on the line 6-6 of Fig. 5;

Fig. 7 is a plan view showing the clamping jaws open to receive the side portions of the bag;

Fig. 8 is a section taken on the line 8-8 of Fig. '7

Fig. 9 is a plan view showing the collapsible bag clamp with the sections thereof arranged in position to hold the mouth of the bag open;

Fig. 10 is a plan view illustrating the sewing mechanism, the top of the case or cover being removed;

Figs. 11, 12, 13, and 14 are detail views illustrating the several steps in the operation of the stitch forming mechanism;

Fig. 15 is a detail elevation of the needle;

Fig. 16 illustrates side and edge views of the looper member;

Fig. 17 illustrates side and edge views of the loop holding element;

Fig. 18 is a detail plan view of the means for tensioning and holding the twine;

Fig. 19 is a fragmentary plan view illustrating the relative arrangement of the parts in the return movement of the sewing mechanism and the manner in which the twine is cut;

Fig. 20 is an edge view of one section of the case illustrating the cutting knife;

Fig. 21 is an enlarged detail section taken on the line 21-21 of Fig. 19;

Fig. 22 is an enlarged vertical section illustrating the operating gearing for the sewing mechanism;

Fig. 23 is a section taken on the line 23- 23 of Fig. 22;

Fig. 241 is a longitudinal section through a grain discharge spout illustrating an improved means for cutting off the feed when the sack or bag has been filled and showing the spout open; and

Fig. 25 is a similar view, the spout being closed.

Referring in detail to the drawings, 5 designates two similar frame members which may be mounted or secured in any suitable manner upon the discharge and of the threshing machine. As herein illustrated, these frame members are of channel bar construction and have lower, horizontally disposed rails 6 and pper, obliquely inclined rails 7. To these frame members, at one of their ends, the horizontally disposed angle bar 8 is secured by means of the bracket plates, indicated at .9. The angle bar 8 extends benez th the lower horizontal rails 6 of the frame members. lietween said frame members, track bars 10 are arranged. and fixed at one of their ends to the horizontal flange of the angle bar 8, the other ends of said track bars being connected by means of a bar 11. Slide bars 12 are movable upon the bars 10 and are connected at one of their ends by the transverse bar 13. To the other end of each of the bars 12, a depending bra caret plate 14 I is fixed, to which the vertical flange of an angle bar 15 is secured. A transverse shaft 16 is mounted in suitable bearings'on the frame members 5, and a pair of spaced links 17 are rigidly fixed at one of their ends to the rod orshaft 16 adjacent the opposite ends thereof. The other ends of each pair of links are connected to a rod 18 which is pivotally connected to one of theslide bars 12, as shown at 19, at a point in spaced relation to the angle bar 15.

Ashaft 16 is provided at one end with an operating crank 20 and by turning this crank through an arc of 180, the bars 12 will be moved longitudinally on the track bars 10 through the medium of the rods 18 to move the angle bar 15 toward the angle bar 8. Each of the rods 18 is bowed intermediate of its ends, as shown at 21, to accommodate the horizontal shaft 16 .in the latter position of the angle bar 15. The edges of the bag or sack, which is adapted to be clamped and held closed at its month by the movable angle bar 15, are held in a collapsible clamping or gripping device,

which I shall now proceed to describe in de-' tail.

Referring to Figs. 4. to 9 inclusive of the drawings, it will be seen that the sack supporting or gripping device includes a pair of longitudinal side plates 22 which are hingedly connected at their ends, as at 23, to end plates 24:. The plates 24 at corresponding ends of the side plates 22, are hingedly connected to each other, as at Each of these plates is formed along its lower longitudinal edge with teeth 26. Outer longitudinal side plates 27 are hingedly connected to the upper edges of the inner plates 22, as at 28, and to these outer side plates, the outer end plates 30 are hinged, as indicated at 29, said plates 30 being hinged to the corresponding inner end plates 24, as at 31. Theinncr ends of the outer plates 30 are spaced from each other, as clearly seen in Fig. 9.

rods 34: are riveted at their extremities.

The outer side plates 27 are each provided with flanges 32 projecting outwardly from its upper edge in spaced relation to the opposite ends of the plate. These plates 27 are also centrally formed with the upwardly projecting, outwardly inclined wings 83, to which handle The plates 27 at the juncture of the wings therewith, are connccted'to the inner side plates 28 by means of the spring hinges 353.

The inner plates 22 are also centrally formed with upwardly projecting wings or flanges 36 in opposed relation to the wings The outer plates 27'and 30 are novided upon their lower edges with spaced teeth, as shown at 37, which are alternatelydisposed with relation to the teeth 26 on the inner plates and project toward the same,

in the use of the saclt gripping device, the upper edges of the sack are adapted to be engaged between the inner and outer series of plates, the handles being forced toward each other so that the outer series of plates are moved outwardly into angular spaced relation to the inner plates, shown in Fig. 8. The handle members are then released so that the spring hinges force the outer series of plates inwardly to their normal positions. Thus, the teeth 26 and I J, i (it on the lower edges oi bllG two series oi plates engaging in the opposite sides of the walls of the sack will securely grip and hold the same. The sack is then disposed in position betweenthe angle bars 8 and 15 with the flanges resting upon the upstanding flanges of said bars. Thus, the mouth of re sack is held in a wide openposition while the grain or other material is fed into the same. After the sack has been filled, the crank 20 is actuated above explaineiil. The outer angle bar 15 is thus moved inwardly and the pressure of the same against the sack gripping and suporting device, col lapses said device, the ends thereof folding inwardly toward each other, as seen in Fig. 5, until. the mouth of the sack is securely closed. Theopposed walls of the sack are now stitchedor sewed together at a point immediately below the clamping or gripping device, and for this purpose l have herein illustrated a sewing mechanism, which I have found to be very reliable and efficient in practical use. I This mechanism in its preferred embooiment is constructed and arranged as follows:

To the vertical flange of the angle bar 8, at one side of the bag clamping means, a

' rack bar 38 is fixed and to the outer side of said rack bar, the angle bar 39 is secured. 40 designates a housing or casing within which the sewing mechanism is contained "This cas ng'ls disposed in a horizontal plane L n i beneath the angle bars 0 and 39 and is provided at one of its ends with the spaced. peripherally grooved .rollers' ll which travel ltih uponthe horizontal flanges of the respective angle bars. 4l2 designates a housing which is secured to the upper side of the case ll) adjacent its opposite end and within 5 which. the operating gearing for the sewing mechanism, to be later described, is mounted. Upon the opposite sides of this housing, adjustable bracket members d3 are arranged and carry the rollers 4A which are engaged against the horizontal l'la nge of the angle bar 39. The case 40 is formed with a slot centrally thereof which extends longitudinally from one end of said casing to a point in spaced relation to its opposite end. Within this slot, the upper end of the bag or sack is adapted to be received.

Upon a shaft 4-6, jeurnaled in the housing 4.2, a spur-gear 42? is loosely mounted and is engaged with the teeth of the longitudinally extending rack bar 38. At each side of the gear 45, a beveled gear 48 is also loosely mounted upon said shaft. Each of these beveled gears is formed with a rectangular hub portion 49 to receive a ratchet wheel 50. Pawls 51 are pivotally mounted upon the opposite side faces of the gear l'l, said pawls racing in the same direction and being engaged with the teeth of the respective ratchets 50. The pawls 51 are yieldingly held in engagement with the respective ratchets by means of the springs 52 which are preferably formed of wire and have their medial portions disposed through the gear d7, the terminals of each spring having operative engagement with the corresponding pawls on opposite faces of the gear.

Fixed shafts 53, extending at right a ngles to the shaft 4L6, are also mounted in the housing: l2 and extend through the casing 4-0. Upon these shafts, a sleeve 5% is loosely engaged.

is. beveled pinion 5:) is fixed to one end of each sleeve and meshes with the respective beveled gears lS. To the other ends of the sleeves 54; and disposed within the casing d0, gears 56 are secured, said gears having meshing engagement with each other. It will, of course, be under stood that the under side of the gear housing l-Q is suitably formed or recessed to accommodate the angle bars 8 and 39 and the rack bar 38. v

Upon a stub shaft 57 fixed to the body wall of the case 40, a pinion 58 is loosely mounted, said pinion havi meshing engagement with one of the gears To one side of the pinion, a circular dish or plate 59 is lined. In this plate adjacent its outer edge, a pin 60 is secured and has operative in a longitudinal slot 62 l in one end of a needle actuatinq lc 'er Gl which is fill od upon the wall "ie other end of said lever,

member the shank of the needle 66 is adjustably secured by means of a suitable set screw 67. The bracket member is formed with an angularly projecting arm 68. To the end of this arm, one end of a contractile spring 69 is attached, the other end of said spring being suitably connected to the lever (51. A slot 70 is formed in the vertical flange or wall of the case along one edge of the slot 115 therein and through the slot 70, the point of the needle is adapted to be projected. In opposite ends of this slot, rollers T1 are mounted. Adjacent to the eye of the needle, indicated at '72, the needle shank is cut away or recessed on one side thereof, as at 73, for a purpose which will be later explained.

Upon one of the frame members 5, a suitable box or receptacle 7a to receive the twine ball is mounted, and the marginal flange of the case do is formed with an eye or opening 75, through which the twine is ex ended. 76 designates a spring metal plate extending longitudinally within the case and having one of its ends fixed to the marginal wall of the case-by the screw 771 A second screw '58 is adjustable in the case wall and is engaged with said spring plate to regulate the tension thereof. The other end of this spring plate is formed with an open guide eye 79 for the twine. From this eye, the twine is angularly extended and engaged through a ide S0 fixed to the case wall. From the latter guide, the twine e1 tends to the guide button or head 81 mount ed upon the wall of the case and is engaged in the curved slot or channel 852 formed in said he i is extended through the eye of the needle.

Between the fulcrum of the lever 61 and the needle 66, a disk 83 is rotatably mounted upon a stub shaft S t lined in the case wall and is provided in its perimeter with a se ries of teeth 85 adapted to project through a slot or opening in the vertical flange along one edge of the slot 45. n pin 87 is fixed in said disk adjacent its outer edge and has operative engagement in a slot 89 formed in the lever 88 which is fulcrumed intermediate of its ends, as at 90, upon the case wall. To the other end of this lever, a link member 91 is pivotally connected, said link member being pivoted at its other end to the end of a rod 92 which is longitudinally movable in a suitable guide 93 fixed within the case. The other end of the rod 92 is angularly off-set and a plate 94: is secured thereon, said plate extending longitudinally between the face of the end portion of the tensioning plate 76 for the twine and the marginal wall of the case. This plate 9a. is provided with a notch or recess 95 in its end to receive the twine when said plate is projector in one direction through the medium or the operating connections From this guide head, the twine is formed with the slot 117 withthe disk 83. This disk is also formed in its edge with an angularly projecting lug.

engage thelever 61 and rock the same and move the needle 66 to a position entirely within the case.

In the case 40 and at the opposite side of the slot 45, additional pinions 97 and 98 respectively are journaled upon the stub shafts 99 and 100. Both of these pinions have meshing engagement with the other of the gear wheels '56, and to said pinions, the disks 101 and 102 are respectively fixed.

Ina suitable guide 103 fixed to the wall of the case, a longitudinally reciprocating .looper rod 104 is mounted, said looper rod havin a laterall aro ectin curved fin er 105 formed on one edge thereof and being also formed with a recess 106 extending longitudinally and. inwardly from said finger. 107 designates a loop holding member which is pivoted, as at 108, and is formed with an off-set at one of its ends which is bifurcated, as shown at 109, and is aso provided with an angularly projecting finger or hook 110. 111 designates a guide plate secured in the case. with one end of which the looper rod 104 is engaged. The other end of said plate is engaged with a second rod 112. One end of this rod is connected to the corresponding end of the looper rod 104 by a plate 113. It will be understood that the rod 112 and the guide plate 111 effectually prevent rotation of the looper rod and angular displacement of the finger 105. The plate 113 is operatively connected by means of a rod 114 to a wrist pin fixed in the disk 97. The member 107 is provided with an angularly disposed arm 115 which is operatively con nected in a similar manner to the other of the disks 102 by means of a rod 116. r

The upstanding flange along the edge of the slot 45 adjacent to the end of the looper rod 104, whereon the hook 105 is provided, which is op posed to the slot on the vertical flange along the other edge of theslot 45', and through which the twine is carried by the needle 66. At one end of this slot, a blade 118 is fixed to the inner face of the flange and has an obliquely disposed cutting edge 119.

The gear housing 42 carries a stud bolt 120, upon which an operating lever 121 is fulcrumed intermediate of its ends. A horizontally disposed bar 122 is secured to the angle bars 8 and 39 and an obliquely disposed brace bar 123 is fixed to the other end of the bar 122 and to one of the frame members 5, said brace bar having its medial portion bowed or angularly off-set, as at 124. A U-shaped bar 125 is disposed in spaced relation to the central portion of said off set and is fixed at its extremities thereto.

The operating lever 121 extends between the bowed portion 124 of the bar 123 and the bar 125, thus providing a guide for said operating lever. A movable link bar 126 connects one end of the operating lever to the horizontal bar 122.

Assuming that the bag has been filled with the grain or other material and the bar 15 actuated to collapse the bag gripping means and tightly close the mouth of the bag, the operator now grasps the end of the lever 121 and shifts said lever to the left.

The case 40 carrying the sewing mechanism and the operating gearing therefor is thus cansedto travel horizontally along the angle bars 8 and 39 and in such movement, the gear 47 meshing with the teeth of the rack bar 38, effects the positive rotation of the gears 56. At the start of this movement, the teeth 011 theedge of the disk 83 engaging with one-side of the sack or bag, causes a rotation-of said disk in the direction indicated by the arrow in Fig. 18, so that the plate 94 is shifted by the actuation of the lever 88 to the position seen in dotted lines in said figure and out of engagement with the twine, so that the twine may be freely pulled or drawn through the opening in themarginal wall of the case 40 in the operation of the sewing needle. The opposed walls of the bag or sack are sewed together by means of a chain stitch which is formed by the sewing mechanism in the movement of said mechanism relative to the bag in the following manner.

Reference may now be had to Figs. 11, 12, 13, and 14 of the drawings, wherein I have illustrated the several steps in the formation of the stitch. In the rotation of the disk 59, the lever 61 is actuated and the needle 66 carrying the twine is projected through the openings 70 and 117. As shown in Fig. 11, the needle has carried the twine through the sack walls. In such movement, the looper rod 104 is projected toward the needle and at the start of the return movement of the needle, the hook 105 on said rod engages the twine at one side of the needle. Theneedle point operates through the recess 106 in the side of the looper rod and by reason of its pivotal mounting on the end of the lever 61, may swing laterally in said slot and between the-rollers 71 due to the pressure of the sack walls against the needle shank. As the needle is withdrawn from the walls of the sack,-the'movement of the rod 104 continues and the loop is formed in the twine at the front side of the sack or bag. During this operation, the loop holding element 107 is being actuated, and the curved hook or finger 110 is engaged in the loop before the movement of the rod 104 is reversed, as shown in Fig. 12. In the next operation of the needle, the twine is again carried through the sack walls and between the opupon the horizontal flanges of the respective angle bars. l2 designates a housing which is secured tothe upper side of the case L adjacent its opposite end and within which the operating gearing tor the sewing mechanism, to be later described, is mounted. Upon the opposite sides of this housing, adjustable bracket members 4&3 are arranged and carry the rollers 4b: which are engaged against the horizontal flange ot the angle bar 39. The case 4!) is formed with a slot l5 centrally thereof which extends lon gitudinally from one end of said casing to a point in spaced relation to its opposite end. Within this slot, the upper end of the bag or sack is adapted to be received.

Upon a shaft d6, journaled in the housing as, a spur-gear 4.7 is loosely mounted and is engaged with the teeth of the longitudinally extending rack bar 38. At each side of the gear 47, a beveled gear 48 is also loosely mounted upon said shait. Each of these beveled gears is termed with a rectangular hub portion $9 to receive a ratchet wheel 50. Pawls 51 are pivot-ally mounted upon the opposite side faces of the gear 4:7, said pawls facing in the same direction and being engaged with the teeth of the respective ratchets 50. The pawls 51 are yieldingly held in engagement with the respective ratchets by means of the springs 52 which are preferably formed of wire and have their medial portions disposed through the gear d7, the terminals of each spring having operative engagement with the corresponding pawls on opposite faces of the gear.

Fixed shafts extending at right angles to the shaft 46, are also mounted in the housing 42 and extend through the casing 10. Upon these shafts, a sleeve 54 is loosely engaged. A beveled pinion is fixed to one end of each sleeve and meshes with the respective beveled gears 48. To the other ends of the sleeves 54: and disposed within the casing 4C0, gears 56 are secured, said gears having meshing engagement with eacn other. it will, of course, be understood. that the unc or side or the gear housing 4:2 is suitably formed or -ecessed to accommodate the angle bars 8 and 5:39 and the rack bar 38.

Upon a stub shaft 57 fixed to the body wall of the case 40, a pinion 58 is loosely mounted, said pinion having meshing ongement with one of the gears 56. To one side oi the pinion, a circular disk or plate is fried. in this plate adjacent its outer edge, a pin is secured and has operative engagement in a longituninal slot 2 "ilfilllltfil in one end of a needle actuating lever 61 which tulcrumed intermediate of 't... ends upon the wall of the case, at (53. l pon the other end ot said lover, a bracket member 64: pivoted, as at 65, and in said member the shank of the needle 66 is adjustably secured by means of a suitable set screw 67. The bracket member is formed with an angularly projecting arm 68. To the end of this arm, one end of a contractile spring 69 is attached, he other end of said spring being suitably connected to the lever (31. A slot 70 is termed in the vertical flange or wall of the case along one edge of the slot iz) therein and through the slot 70, the point of the needle is adapted to be pro? jected. In opposite ends of this slot, rollers 71 are mounted. Adjacent to the eye of the needle, indicated at 72, the needle shank is cut away or recessed on one side thereof, as at 73, for a purpose which will be later explained.

Upon one of the frame members 5, a suitable box or receptacle M to receive the twine ball is mounted, and the marginal flange of the case is formed with an eye or opening '75, through which the twine is extended. 76 designates a spring metal plate extending longitudinally within the case and having one of its ends fixed to the marginal wall of the case by the screw '77, A second screw 78 is adjustable in the case wall and is engaged with said spring plate to regulate the tension thereof. The other end of this spring plate is formed with an open guide eye 79 for the twine. From this eye, the twine is angularly extended and engaged through a guide 80 fixed to the case wall. From the latter guide, the twine e);- tends to the guide button or head 81 mounted upon the wall of the case and is engaged in the curved slot or channel 82 "formed in a d. head. From this guide head, the twine is extended through the eye of the needle.

Between the fulcrum oi the lever 61 and the needle (36, a disk 83 is rotatably mounted upon a stub shaft 84 fixed in the case wall and is provided in its perimeter with a series of teeth 85 adapted to project through a slot or opening in the vertical flange along one edge of the slot as. A pin 87 is fixed in said disk adjacent its outer edge and has operative engagement in a slot 89 formed in the lever 88 which is it'ulcrumed intermediate of its ends, as at 90, upon the case wall. To the other end of this lever, a link member 91 is pivotally connected, said link member being pivoted at its other end to the end of a rod 92 which is longitudinally movable in a suitable guide 93 fixed within tie case. The other end of the rod 92 is angularly oft-set and a plate 9 is socured thereon, said plate extending longitudinally between the face of the end portion of the tensioning plate 76 for the twine and the marginal wall of the case. This plate 9% is provided with a notch or recess in its end to receive the twine when said plate is projected in one direction through the medium of the operating connections with the disk 83. This disk is'also formed .in its edge with an a-ngularly projecting lug 96, which, in the movement of the sewing mechanism in one direction, is adapted to engage the lever 61 and rock thev same and move the needle 66 to a position entirely within'the case.

In the case 40 and at the opposite side of the slot 45, additional pinions 97 and 98 respectively are journaled upon the stub shafts 99 and 100. Both of these pinions have meshing engagement with the other of the gear wheels 56, andto said pinions, the disks 101 and 102 are respectively fixed.

In a suitable guide 103 fixed to the wall of the case, a longitudinally reciprocating looper rod 104 is mounted, said looper rod having a laterally projecting, curved finger 105 formed on one edge thereof and being also formed witha recess'106 extending longitudinally and inwardly from said finger. 107 designates a loop holding member which is pivoted, as at 108, and is formed with an off-set at one ofits ends which is bifurcated, as shown at 109, and is aso provided with an angularly projecting finger or hook 110. 111 designates a guide. plate secured in the case. with one end of which the looper rod '104 is engaged. The otherend of said plate is engaged with a second rod 112. One end of this rod is connected to the corresponding end of the looper rod 104 by a plate 113. It will be understood that the rod 112 and the guide plate 111 effectually prevent rotation of the looper rod and angular displacement of the finger 105. The plate 113 is operatively connected by means of a rod 114 to a wrist pin fixed in the disk 97. The member 107 is provided with an angularly disposed arm 115 which is operaitively connected in a similar manner to the other of the disks 102 by means of a rod 116.

The upstanding flange along the edge of the slot 45 adjacent to the end of the looper rod 104, whereon the hook 105 is provided, is formed with the slot 117 which is opposed to the slot on the vertical flange along the other edge of the slot 45, and through which the twine is carried by the needle 66. At one end of this slot, a blade 118 is fixed to the inner face of the flange and has an obliquely disposed cutting edge 119.

The gear housing 42 carries a stud bolt- 120, upon which an operating lever 121 is fulcrumed intermediate of its ends. A hori- Zontally disposed bar 122 is secured to the angle bars 8 and 39 and an obliquely disposed brace bar 123 is fixed to the other end of the bar 122 and to one of the frame members 5, said brace bar having its medial portion bowed or angularly oil-set, as at 124. A 'U-shaped bar 125 is disposed in spaced relation to the central portion of said offset and is fixed at its extremities thereto.

gears 56.

means and tightly close the mouth of the bag, the operator now grasps the end of the lever'121 and shifts said lever to the left.

and theoperating gearing therefor is thus CEIUSGCltOtI'ELXGlllOIlZOl'ltiLllY along the angle bars 8 and 39 and in such movement, the

gear 47 meshing with the teeth of the rack bar 38, effects the positive rotation of the At the start of this movement, the'teeth on the edge of the disk with one side of the sack or bag, causes a rotation ofsaid disk in the direction indicated by the arrow in Fig. 18, so that the plate '94 is shifted by the actuation of the lever 88 to the position seen in dotted'lines in said figure and out of engagement with the twine, so that the twine. may be freely pulled or drawn through the opening in the marginal wall of the case 40 in the opera tion of the sewing needle. The opposed walls'of the bag or sackare sewed together by means by the sewing mechanism 111 the movement of a chain stitch which is formed of said mechanism relativeto the bag in the following manner.

Reference may now be had to Figs. 11, 12, 13, and 14 of the drawings, wherein I have illustratedthe several steps in the formation of the stitch. In the rotation of the disk 59, the lever 61 is'actuated and the needle 66 carrying the twine is projected through the openings 7 0 and 117. As shown in Fig. 11,

the needle has carried the twine through the sack walls. In such movement, the looper rod 104 is projected toward the needle and at the start of the return movement of the needle, the hook 105 on said rod engages the twine at one side of the needle. The needle point operates throughthe recess 106 in the side of the looper rod and by reason of its pivotal mounting on the end of the lever 61, may swing laterally in said slot and be tween the rollers 71 due to the pressure of the sack Walls against the needle shank. As the needle is withdrawn from the walls of the sack, the movement of the rod 104 continues and the loop is formed in the twine at the front side of the sack or bag. During this operation, the loop holding element 107 is being actuated, and the curved hook or finger 110 is engaged inthe loop before the movement of the rod 104 is reversed, as shown in Fig. 12. In the next operation of the needle, the twine is again carried through the sack walls and between the op- 88 engaging The case 40- carrying the sewing mechanism 7 posite sides of the loop held by the element 107, while tne movement of the looper rod lUl is reversed. 'lllie needle point moves through the bifurcation 109 which serves as a guide for the needle ant. insures the passage of the twine through the loop, in the manner shown in liig. 13. After the needle point has entered this bifurcation, the movement of the member 107 is reversed and the hook 110 thereof is withdrawn from the loop. in the continued movement of the sewing mechanism, the twine is, of course, carried across the end of the loop and in the reverse movement of the needle, the looper member again is operatively engaged with the twine to form the next loop therein, as shown in Fig. 11. By providing the recess 73 in the side of the needle shank, the hook- 105 on the looper rod may move therethrough and properly engage the twine to form the loop. In this manner, the walls of the sack or bag may be quickly and securely sewed together and the mouth of the bag closed. At the end of the sewing operation, the operator reverses the movement of the lever 121. T he teeth on the disk 83 engaging one side of the sack, effect the rotation of said disk in a clockwise direction to move the plate 9 1 through the medium of lever 88 to the full line position shown in Fig. 18 and engage the notched end 95 of said plate with the twine closely adjacent to the eye or opening 75 in the upstanding marginal wall of the case so that the twine will be tightly held. In case the needle operating lever 61 is disposed in intermediate position, the lug 96 on the edge of the disk 83 will engage said lever and move the same to the position seen in Fig. 10, so that the needle will be wholly disposed within the case and will not project through the opening and across the slot Thus, the possibility of the needle being broken or of its preventing the reverse movement of the mechanism by engagement with the bag, is obviated. At the start of this reverse movement, the twine is withdrawn for a short distance along the front of the bag until it is caught and held by the plate 94: in the manner above eX- plained, at which time the cutting edge 119 of the plate 118 will engage and sever the twine. Itwill be understood, of course, that there is su'fiicient slack in the twine so that it will not be pulled entirely from the eye of the needle in the reverse movement of the mechanism. In the reverse movement of the sewing mechanism to its original position, the gear 47 will rotate freely upon the shaft a6. the pawls 51 moving idly over the respective ratchets 50. It will thus be apparent that the gearing will not be actuated to continue the operation of the sewing mechanism.

After the bag or sack has thus been sewed, the crank 20 is actuated to project the angle bar 15 oi'itwardly and release the sack which is now removed, together with the clamping or gripping device engaged upon the edges of the bag walls. This device can be readily detached by simply pressing the handle members cl toward each other, as Will be clearly understood.

lnlfigs. 2st and 25, I have illustrated spout or chute 127, through which the grain may be discharged from the grain receiving chamber of a threshing machine into the sack or At the end of this chute, and upon the bottom wall thereof, a gate 128 is pivotally mounted intermediate of its ends,

. as at 129. This gate is formed with side plates or wings 130 which extend along the outer sides of the chute. When in its operative position, the bottom wall of the gate (2X- tends at a downward inclination with respect to the-bottom wall of the chute and is provided at its lower end with a suitable handle 131. The other end of said gate is connected by rods 132 to arms 13% on the opposite ends of a rock shaft 133 which e5;- tends transversely across the bottom wall of the chute at a point in spaced relation to the gate. Coil springs 135 surround the rock shaft at opposite sides of the chute and are fixed at one of their ends to the walls of the chute and have their other ends operatively engaged with the respective crank 1342. To the rock shaft, a feed cutoff plate 136 is fixed and in one position is adapted to cut off the further gravity movement of the grain from said chute. T he springs 135 normally act to rotate the rock shaft and move the cut-off plate 136 to this position, the gate 130 being simultaneously moved through the medium of the rods 132 across the end of the chute, as seen in Fig. 25. To open the chute for the discharge of the grain. it is only necessary to grasp the handle 131 and swing the gate 130 downwardly to the position seen in Fig. 2a, where it will be noted that the ends of the rods 132 which are piv otally connected to the gate, are disposed slightly above the gate pivot 129 so that the pressure exerted by the springs 135 will not return the gate to its normal position. As soon, hmvever, as the gate is tilted upwardly to a sullicient distance to lower the ends of the rods below the line of the pivot 129, the springs 135 will continue the closing movement of the gate and at the same time move the cut-off plate 136 to closed position. Thus, the further feed of the grain may be very quickly cut off so as to eliminate to a large extent waste of the grain.

From the foregoing i'lescription, taken in connection with the accompanying drawings, it is believed that the construction, manner of operation and several advanta of my improyed bag or sack sewing mechanism will be clearly and fully understood. The invention may be readily adapted and applied to the ordinary threshing machine,

or to combinedharvesters and threshers of the modern type which thresh the grain in the field as it is harvested. The necessary manual operations may be easily performed with a minimum of labor by a single attendant, and owing to the very compactarrangement of the several elements of the mechanism, it will occupy but relatively small space upon the machine. In view of the very simple construction of the several parts of the mechanism, as above disclosed, it will be apparent that the device will be positive and reliable in its operation, durable in construction, and not liable to easily get out of order.

While. I have herein shown and described the preferred form, construction and relative ar'angement of the various parts of V the device, it is nevertheless to be understood that the same are susceptible of consid: erable modification and I, therefore, reserve the privilege of adopting all such legitimate changes as may be fairly embodied within the spirit and scope of the invention as claimed.

I claim l; Ina bag sewing machine, a shitta-ble case having a longitudinally extending slot to receive a bag, sewing mechanism mounted withinsaidcase and including a reciprocating needle movable across said slot, means for actuating said mechanism inthe movement of the case in one direction and means for retracting the needle within the'case when the case is moved in the opposite direction V 2. In abag sewing machine, a horizontally shiftable case having a slot therein to receive a bag, manually operable means for shifting said case, sewing mechanism arranged within the case and. including a needle movable across said slot, means for actuating the sewing mechanism in the movement of the case in one directionand means for retracting said needle within the case and holding and severing the sewing twine when the case is moved in the opposite direction.

3. In a bag sewing machine, a horizontally shiftable case having a slot therein to receive a bag, manually operable means for shiftingjsaid case, sewing mechanism arranged within the case and including a needle movable across said slot, means for actuating the sewing mechanism in the movement of the case in one direction, said means being inoperative in the movement of thei'case in a reverse direction, and means automatically operating at the start of such reverse movement to retract the needle and j position the same entlrely wlthin the case.

4. In a bag sewing machine, a horizontally shiftable case having a slot therein to receive the closed end of a bag, sewing mechanism mounted within said case and reverse direction, means automatically operableto engage and hold the sewing twine in the movement of the case in the latter direction, and means carried by the case for severing the twine. 7

5. In a. bag sewing machine, a horizontally shiftable case having a slot therein to receive the closed end of a bag, sewing mechanism within said case including a reciprocating needle to traverse said slot, a lever operatively connected: to, said needle, means for actuating the sewing, mechanism in the movement or the case in one direc tion, said means beingrinoperativ'e in the movement of the case i in: a reverse direction, a disk. rotatably mounted in the case and having teethon itsperimeter-to engage the bag in the reverse-movementof the case, said disk being further provided with-means to coact with thelever and retract the needle from said slot, and means for actuating said mechanism in the movement of the case in one, direction. 7 r

6. In a bag sewing machine, a horizontally shiftablecase having a slottherein to receive the closed end of'a bag, sewing mechamsm WltlllILSillCl case mcludmg a rec1proca ting needle to traversesaid slot, a lever operatively connected to said needle, means for actuating thesewing mechanismin the movement of: the caseinone direction, said:

to move said element into engagement withv the twine and hold the latteragainst movement, and means carried by the case for sev-- ering the twine.

7. In a bag sewing machine, a horizontally shiftable case having a slot therein to receive the closed end of a bag, sewing mech anism within'said case including a reciprocating needle to traverse said slot, a lever operatively. connected to said needle, means for actuatin thesewing mechanism in the movement oi the case in: one direction, said means being'inoperative in the-movement of the case in a reverse direction, a disk rotatably mounted in the case and having teeth on its perimeter to engage the bag in the reverse movement of'the case, said diskbeingfurther provided with means to coact with the lever and retract the needle from said slot, a twine engaging element mounted within the case, operating connections between said disk and said. element to move the element in one direction in the operative shitting movement of the case and release the twine, said disk being rotated in the re verse movement of the case to move said element into engagement with the twine and hold the latter against movement, and means carried by the case for severing the twine.

S. In a bag sewing machine, rectilinearly shiftable sewing mechanism, a twine holding and releasing means movable with said mechanism and including a part engageable with the bag in the initial bodily operative movement of said mechanism to release the sewing twine and also engageable with the bag and operable thereby'in the initial reverse movement of said mechanism to grip and hold the twine, and means for subsequently severing the twine.

9. In a bag sewing machine, rectilinearly shi'ltable sewing mechanism, means for holding and releasing the sewing twine movable with said mechanism and including a shift able twine engaging member, a rotatable part, means operatively connecting said rotatable part to the shittable member, said rotatable part engaging the bag in the initial operative bodily movement of the sewing mechanism whereby it is rotated in one direction to shift said member and release the twine, said part being reversely rotated by engagement with the bag in the initial reverse movement of said mechanism to shift said member into binding engagement with the twine, and means for subsequently severing the twine.

10. In a bag sewing machine, a rectilinearly shiftable case having a slot to receive the bag, sewing mechanism mounted within said case and including a pivotally mounted lever, a sewing needle on one end of said lever reciprocable across said slot in the pivotal movement of the lever, and means for actuating said lever.

11. in a bag sewing machine, a rectilinearly movable case having a slot to receive the bag, sewing mechanism mounted within said case and including a lever fulcrumed intermediate of its ends, a sewing needle mounted on one end of the lever and reciprocable across said slot in the pivotal movement of the lever, and actuating means operatively connected to the other end of said lever.

12. In a bag sewing machine, a rectilinearly movable case having a slot therein to receive the bag, sewing mechanism mounted within said case and including a needle operatively mounted at one side of the slot and reciprocable across the same, stitch forming means mounted within the case at the opposite side of said slot, and means for actuating the stitch forming means and the needle in the movement of said mechanism in one direction.

18. In a bag sewing machine, a rectilinearly movable case having a slot therein to receive the bag, sewing mechanism mounted in said case including a lever pivotally mounted in the case at one side of said slot, a sewing needle on one end of said lever reciprocable across the slot, stitch forming means mounted in the case at the opposite side of said slot, and means for actuating said lever and the stitch forming means in the movement of the sewing mechanism in one direction.

lt. In a bag sewing machine a reciprocable case, sewing mechanism within said case, means actuated by the movement of said case in one direction to release the sewing twine and actuate said sewing mechanism and means actuated by movement or said case in the opposite direction for retracting said sewing mechanism entirely within said case and holding and severing the sewing twine.

15. in a bag sewing machine, rectilinearly shiftable sewing mechanism, means for actuating said sewing mechanism when moving in one direction and a twine holding and releasing means movable with said mechanism and adapted to release the sewing twine when the sewing mechanism is being moved in the direction in which it is operated and to engage the twine and hold the same against movement when sewing mechanism is being moved in the opposite direction.

In a bag sewing machine, rectilinearly shiltable sewing mechanism, means for actuating said sewing mechanism when moving in one direction, a twine holding and releasing means movable with said mechanism and adapted to release the sewing twine when the sewing mechanism is being moved in the direction in which it is operated and to engage the twine and hold the same against movement when sewing mechanism is being moved in the opposite direction, and means associated with said mechanism for severing said twine during the movement of the sewing mechanism in the last named direction.

17. in a bag sewing machine a reciprocable case provided with a slot adapted to receive a bag, sewing mechanism mounted within said case and including a reciprocable needle movable transversely of said slot, means operated by the movement of said case in one direction for actuating said sewing mechanism, a member carried by said case and projecting into said slot for engagement with the bag being sewed, means operated by the engagement of said member by the bag when the case is being moved in the aforesaid direction for releasing the sewing twine and means operated by the said case in one direction engagement of said member with the bag when the case 1s moved 1n the opposite d1- rection for withdrawing said needle within said case and holding said sewing twine against movement.

18. In a bag sewing machine a reoiprogagement with the bag being sewed, means operated by the engagement of said member by the bag when the case is bein moved in the aforesaid direction for releasing the sewing twine, means operated by the engagement of said member with the bag when the case ismoved in the opposite direction for withdrawing said needle within said case and holding said sewing twine againstmovement, and means carried by said case for SGVGIlHgihG twine. I

ture.

JACOB EMIL- SCl-Ih IANDT.

In testimony whereof I fLl'fiX my signa 

